package gui;

import java.awt.Color;
import java.awt.event.ActionEvent;

import javax.swing.*;

public class ActionTest {
	public static void main(String[] args) {
		ActionFrame frame = new ActionFrame();
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}
}

/**
 * A frame with a panel that demonstrates color change actions.
 */
class ActionFrame extends JFrame {
	public ActionFrame() {
		setTitle("ActionTest");
		setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);

		// add panel to frame

		ActionPanel panel = new ActionPanel();
		add(panel);
	}

	public static final int DEFAULT_WIDTH = 300;
	public static final int DEFAULT_HEIGHT = 200;
}

/**
 * A panel with buttons and keyboard shortcuts to change the background color.
 */
class ActionPanel extends JPanel {
	public ActionPanel() {
		// define actions

		Action yellowAction = new ColorAction("Yellow", new ImageIcon(
				"image/yellow-ball.gif"), Color.YELLOW);
		Action blueAction = new ColorAction("Blue", new ImageIcon(
				"image/blue-ball.gif"), Color.BLUE);
		Action redAction = new ColorAction("Red",
				new ImageIcon("image/red-ball.gif"), Color.RED);

		// add buttons for these actions

		add(new JButton(yellowAction));
		add(new JButton(blueAction));
		add(new JButton(redAction));

		// associate the Y, B, and R keys with names

		InputMap imap = getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);

		imap.put(KeyStroke.getKeyStroke("ctrl Y"), "panel.yellow");
		imap.put(KeyStroke.getKeyStroke("ctrl B"), "panel.blue");
		imap.put(KeyStroke.getKeyStroke("ctrl R"), "panel.red");

		// associate the names with actions

		ActionMap amap = getActionMap();
		amap.put("panel.yellow", yellowAction);
		amap.put("panel.blue", blueAction);
		amap.put("panel.red", redAction);
	}

	public class ColorAction extends AbstractAction {
		/**
		 * Constructs a color action.
		 * 
		 * @param name
		 *            the name to show on the button
		 * @param icon
		 *            the icon to display on the button
		 * @param c
		 *            the background color
		 */
		public ColorAction(String name, Icon icon, Color c) {
			putValue(Action.NAME, name);
			putValue(Action.SMALL_ICON, icon);
			putValue(Action.SHORT_DESCRIPTION, "Set panel color to "
					+ name.toLowerCase());
			putValue("color", c);
		}

		public void actionPerformed(ActionEvent event) {
			Color c = (Color) getValue("color");
			setBackground(c);
		}
	}
}
